Term
Where is the location of class V |
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Definition
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Term
Class V- what is the axial depth |
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Definition
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Term
class V, the prep should be .65 that is .15 of enamel and .5 into dentin. If enamel is thicker than .15 what do you do? |
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Definition
Make sure you are at the minimum .5 into dentin. |
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Term
Class V Is the axial wall straight? |
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Definition
No follow the contour of the tooth. |
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Term
Class V Describe Axial line angle as it meets other walls? |
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Definition
Line angles should be curved |
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Term
Name the wall of a class V prep? |
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Definition
mesial, distal, occlusal, and gingival wall |
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Term
Why follow the contour of the tooth? |
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Definition
To maintain the minimum amount of axial depth |
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Term
What happens when areas of defect go deeper then the minimal depth in the axial wall? |
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Definition
make a minimal prep design then specifically address the other areas. The whole prep is not adjusted just the area of lesions or defects. |
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Term
How do you create retention in a class V prep? |
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Definition
undercut the occlusal and gingival walls. they measure .25 in each direction. Place in the sound dentin already exposed. Don't continue to extend axially |
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Term
Where are the retentive grooves added? |
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Definition
Gingival and occlusal wall, must extend .25 into dentin |
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Term
What type of bur is used to place retentive groove in class v? |
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Definition
Use a 33.5 inverted cone bur or a 1/4 round bur. |
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Term
With class V the walls are planned using what hoe? |
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Definition
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